National Weather Service Text Product
AFOS product CLISTL
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLISTL
Product Timestamp: 2025-09-20 07:27 UTC
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849
CDUS43 KLSX 200727
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
227 AM CDT SAT SEP 20 2025
...................................
...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 19 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 87 443 PM 96 1925 80 7 92
1931
1955
MINIMUM 67 618 AM 42 1938 60 7 65
AVERAGE 77 70 7 79
PRECIPITATION (IN)
YESTERDAY T 1.82 1954 0.09 -0.09 0.00
MONTH TO DATE 0.17 1.95 -1.78 0.08
SINCE SEP 1 0.17 1.95 -1.78 0.08
SINCE JAN 1 32.26 31.62 0.64 31.76
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2015 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 4 7 -3 3
SINCE SEP 1 4 7 -3 3
SINCE JUL 1 4 8 -4 3
COOLING
YESTERDAY 12 6 6 14
MONTH TO DATE 180 161 19 172
SINCE SEP 1 180 161 19 172
SINCE JAN 1 1701 1611 90 1880
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 400 AM
LOWEST 40 500 PM
AVERAGE 65
..........................................................
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 97 2017
2022
MINIMUM TEMPERATURE (F) 59 40 1875
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 648 AM CDT SUNSET 701 PM CDT
SEPTEMBER 21 2025.....SUNRISE 649 AM CDT SUNSET 700 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$